Native Audit
In addition to using external tools for monitoring or auditing, native database audit capabilities are also available for many database platforms. The native audit trails are extracted on a regular basis and transferred to a designated security system where the database administrators do not have access. This ensures a certain level of segregation of duties that may provide evidence the native audit trails were not modified by authenticated administrators. Turning on native impacts the performance of the server. Generally, the native audit trails of databases do not provide sufficient controls to enforce separation of duties; therefore, the network and/or kernel module level host based monitoring capabilities provides a higher degree of confidence for forsenics and preservation of evidence.
Read more about this topic: Database Security
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—Susan B. Anthony (1820–1906)